坡顶裂隙对边坡渗流规律及稳定的影响
Influence of Crack at the Top of Slope on Seepage Regularity and Stability of Slope
聂正 1张电吉 1周昌育 1王靖禹 2蒋琴琴 1柳锐1
作者信息
- 1. 武汉工程大学资源与安全工程学院
- 2. 河海大学力学与材料学院
- 折叠
摘要
为了探究坡顶裂隙对边坡内雨水渗流规律及整体稳定的影响,以某露天矿边坡为研究对象,采取数值模拟的研究方法,分别建立无裂隙和有裂隙2种边坡模型,观察在降雨时边坡渗流规律及稳定性变化.模拟结果发现:降雨情况下,当坡顶存在裂隙时,雨水入渗量增加,且坡脚入渗量增加最明显,边坡的安全系数大大降低,临界滑移面向坡脚发生了一定的延伸.结果说明,当坡顶存在裂隙时,降雨对坡脚的影响最为严重,应当注意坡脚的边坡治理.
Abstract
In order to explore the influence of slope top crack on the seepage regularity of rainwater in the slope and the overall stability,a certain open-pit mine slope was taken as the research object,and two models of slope without crack and slope with crack were established by numerical simulation method to ob-serve the seepage law and stability changes of slope during rainfall.The simulation results show that in the case of rainfall,when there are cracks at the top of slope,the rainwater infiltration increases and the infiltra-tion at the foot of slope increases most obviously.The safety factor of the slope is greatly reduced,and the critical slip extends to the slope foot.The results show that when there are cracks at the top of the slope,the rainfall has the most serious effect on the slope foot,and the treatment of the slope foot should be paid atten-tion to.
关键词
渗流规律/边坡稳定/数值模拟/裂隙Key words
seepage regularity/slope stability/numerical simulation/crack引用本文复制引用
基金项目
武汉工程大学研究生教育创新基金(CX2022593)
出版年
2024
NETL
NSTL
万方数据